Catalytic performance of Cu- and Zr-modified beta zeolite catalysts in the methylation of 2-methylnaphthalene

Abstract 2,6-Dimethylnaphthalene (2,6-DMN) is a commercially important chemical for the production of polyethylenenaphthalate and polybutylene naphthalate. However, its complex synthesis procedure and high production cost significantly reduce the use of 2,6-DMN. In this study, the synthesis of 2,6-D...

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Autores principales:	Fatih Güleç, Farooq Sher, Ali Karaduman
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2018
Materias:	Methylation Naphthalene derivatives Polyethylenenaphthalate 2,6-Dimethylnaphthalene and beta zeolite catalyst Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/2028cf9a4a5b40e88b0cd92b4331dc76
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spelling	oai:doaj.org-article:2028cf9a4a5b40e88b0cd92b4331dc762021-12-02T04:44:40ZCatalytic performance of Cu- and Zr-modified beta zeolite catalysts in the methylation of 2-methylnaphthalene10.1007/s12182-018-0278-21672-51071995-8226https://doaj.org/article/2028cf9a4a5b40e88b0cd92b4331dc762018-11-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-018-0278-2https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract 2,6-Dimethylnaphthalene (2,6-DMN) is a commercially important chemical for the production of polyethylenenaphthalate and polybutylene naphthalate. However, its complex synthesis procedure and high production cost significantly reduce the use of 2,6-DMN. In this study, the synthesis of 2,6-DMN was investigated with methylation of 2-methylnaphthalene (2-MN) over metal-loaded beta zeolite catalysts including beta zeolite, Cu-impregnated beta zeolite and Zr-impregnated beta zeolite. The experiments were performed in a fixed-bed reactor at atmospheric pressure under a nitrogen atmosphere. The reactor was operated at a temperature range of 400–500 °C and varying weight hourly space velocity between 1 and 3 h−1. The results demonstrated that 2,6-DMN can be synthesized by methylation of 2-MN over beta type zeolite catalysts. Besides 2,6-DMN, the product stream also contained other DMN isomers such as 2,7-DMN, 1,3-DMN, 1,2-DMN and 2,3-DMN. The activity and selectivity of beta zeolite catalyst were remarkably enhanced by Zr impregnation, whereas Cu modification of beta zeolite catalyst had an insignificant effect on its selectivity. The highest conversion of 2-MN reached 81%, the highest ratio of 2,6-DMN/2,7-DMN reached 2.6 and the highest selectivity of 2,6-DMN was found to be 20% by using Zr-modified beta zeolite catalyst.Fatih GüleçFarooq SherAli KaradumanKeAi Communications Co., Ltd.articleMethylationNaphthalene derivativesPolyethylenenaphthalate2,6-Dimethylnaphthalene and beta zeolite catalystScienceQPetrologyQE420-499ENPetroleum Science, Vol 16, Iss 1, Pp 161-172 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Methylation Naphthalene derivatives Polyethylenenaphthalate 2,6-Dimethylnaphthalene and beta zeolite catalyst Science Q Petrology QE420-499
spellingShingle	Methylation Naphthalene derivatives Polyethylenenaphthalate 2,6-Dimethylnaphthalene and beta zeolite catalyst Science Q Petrology QE420-499 Fatih Güleç Farooq Sher Ali Karaduman Catalytic performance of Cu- and Zr-modified beta zeolite catalysts in the methylation of 2-methylnaphthalene
description	Abstract 2,6-Dimethylnaphthalene (2,6-DMN) is a commercially important chemical for the production of polyethylenenaphthalate and polybutylene naphthalate. However, its complex synthesis procedure and high production cost significantly reduce the use of 2,6-DMN. In this study, the synthesis of 2,6-DMN was investigated with methylation of 2-methylnaphthalene (2-MN) over metal-loaded beta zeolite catalysts including beta zeolite, Cu-impregnated beta zeolite and Zr-impregnated beta zeolite. The experiments were performed in a fixed-bed reactor at atmospheric pressure under a nitrogen atmosphere. The reactor was operated at a temperature range of 400–500 °C and varying weight hourly space velocity between 1 and 3 h−1. The results demonstrated that 2,6-DMN can be synthesized by methylation of 2-MN over beta type zeolite catalysts. Besides 2,6-DMN, the product stream also contained other DMN isomers such as 2,7-DMN, 1,3-DMN, 1,2-DMN and 2,3-DMN. The activity and selectivity of beta zeolite catalyst were remarkably enhanced by Zr impregnation, whereas Cu modification of beta zeolite catalyst had an insignificant effect on its selectivity. The highest conversion of 2-MN reached 81%, the highest ratio of 2,6-DMN/2,7-DMN reached 2.6 and the highest selectivity of 2,6-DMN was found to be 20% by using Zr-modified beta zeolite catalyst.
format	article
author	Fatih Güleç Farooq Sher Ali Karaduman
author_facet	Fatih Güleç Farooq Sher Ali Karaduman
author_sort	Fatih Güleç
title	Catalytic performance of Cu- and Zr-modified beta zeolite catalysts in the methylation of 2-methylnaphthalene
title_short	Catalytic performance of Cu- and Zr-modified beta zeolite catalysts in the methylation of 2-methylnaphthalene
title_full	Catalytic performance of Cu- and Zr-modified beta zeolite catalysts in the methylation of 2-methylnaphthalene
title_fullStr	Catalytic performance of Cu- and Zr-modified beta zeolite catalysts in the methylation of 2-methylnaphthalene
title_full_unstemmed	Catalytic performance of Cu- and Zr-modified beta zeolite catalysts in the methylation of 2-methylnaphthalene
title_sort	catalytic performance of cu- and zr-modified beta zeolite catalysts in the methylation of 2-methylnaphthalene
publisher	KeAi Communications Co., Ltd.
publishDate	2018
url	https://doaj.org/article/2028cf9a4a5b40e88b0cd92b4331dc76
work_keys_str_mv	AT fatihgulec catalyticperformanceofcuandzrmodifiedbetazeolitecatalystsinthemethylationof2methylnaphthalene AT farooqsher catalyticperformanceofcuandzrmodifiedbetazeolitecatalystsinthemethylationof2methylnaphthalene AT alikaraduman catalyticperformanceofcuandzrmodifiedbetazeolitecatalystsinthemethylationof2methylnaphthalene
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Catalytic performance of Cu- and Zr-modified beta zeolite catalysts in the methylation of 2-methylnaphthalene

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